Post project 37: Peak Voltmeter

July 11, 2014 | 10:38

Post project 37: Peak Voltmeter

This 100-percent TUP & TUN
circuit measures the peak
value of an AC voltage up to 6
volts in amplitude, regardless
of the waveform or if the
peak occurs in the positive
or negative excursion of the
signal.

This 100-percent TUP & TUN
circuit measures the peak
value of an AC voltage up to 6
volts in amplitude, regardless
of the waveform or if the
peak occurs in the positive
or negative excursion of the
signal.
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To allow over-the-weekend construction
the project is built using the cheapest and
commonest parts possible—just BC5xx
transistors and 20 or so passive components,
all through-hole and off the shelf, or ex junkbox.